UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'FNAi0kl5NDFgAQZw/plUXMbzzj7WHhj9mLNxP4xsXj4=' 
WHERE 
  key_id = '74478852d4e9b6e4e6141c7e672b968cfc5c4297d4bb8a5afa7e3163286278fa' 
  AND (
    token = 'FNAi0kl5NDFgAQZw/plUXMbzzj7WHhj9mLNxP4xsXj4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00034